121304646403189 has 2 divisors, whose sum is σ = 121304646403190. Its totient is φ = 121304646403188.

The previous prime is 121304646403063. The next prime is 121304646403219. The reversal of 121304646403189 is 981304646403121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112515704304964 + 8788942098225 = 10607342^2 + 2964615^2 .

It is a cyclic number.

It is not a de Polignac number, because 121304646403189 - 2¹⁵ = 121304646370421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121304646409189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60652323201594 + 60652323201595.

It is an arithmetic number, because the mean of its divisors is an integer number (60652323201595).

Almost surely, 2^{121304646403189} is an apocalyptic number.

It is an amenable number.

121304646403189 is a deficient number, since it is larger than the sum of its proper divisors (1).

121304646403189 is an equidigital number, since it uses as much as digits as its factorization.

121304646403189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 121304646403189 in words is "one hundred twenty-one trillion, three hundred four billion, six hundred forty-six million, four hundred three thousand, one hundred eighty-nine".